linux-kernel - Re: parisc arch makefile clean-up needed [Was: cleaning up "make headers

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Date:	Wed, 10 Oct 2007 17:33:35 -0400 (EDT)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Matthew Wilcox <matthew@....cx>
cc:	Sam Ravnborg <sam@...nborg.org>,
	parisc-linux-request@...ts.parisc-linux.org,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Grant Grundler <grundler@...isc-linux.org>,
	Kyle McMartin <kyle@...isc-linux.org>
Subject: Re: parisc arch makefile clean-up needed [Was: cleaning up "make
 headers_install" for various architectures]

On Wed, 10 Oct 2007, Matthew Wilcox wrote:

> On Wed, Oct 10, 2007 at 08:38:58PM +0200, Sam Ravnborg wrote:
> > parisc arch Makefile needs some love and care...
>
> None of your comments actually address the thing that he was having
> problems with:
>
> ifneq ($(call cc-ifversion, -lt, 0303, "bad"),)
> $(error Sorry, GCC v3.3 or above is required.)
> endif
>
> Now, compiler.h has some checks like:
>
> #elif __GNUC__ == 3 && __GNUC_MINOR__ >= 2
> # include <linux/compiler-gcc3.h>
> #else
> # error Sorry, your compiler is too old/not recognized.
> #endif
>
> But it doesn't permit us to rule out gcc 3.3 unless we patch compiler.h.
> There's no asm/compiler.h, for example.

hmmmm ... actually, there is ... sort of:

$ find include -name compiler.h
include/asm-alpha/compiler.h
include/asm-mips/compiler.h
include/linux/compiler.h

$ grep -r "asm/compiler.h" *
arch/mips/kernel/cpu-bugs64.c:#include <asm/compiler.h>
arch/mips/kernel/time.c:#include <asm/compiler.h>
arch/mips/au1000/common/time.c:#include <asm/compiler.h>
arch/alpha/kernel/sys_sio.c:#include <asm/compiler.h>
include/asm-alpha/mmu_context.h:#include <asm/compiler.h>
include/asm-alpha/core_marvel.h:#include <asm/compiler.h>
include/asm-alpha/core_t2.h:#include <asm/compiler.h>
... lots more alpha stuff ...

  so there does appear to be some precedent for an asm/compiler.h.
for better or worse.

rday

-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://crashcourse.ca
========================================================================
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